Add device policy to disallow shutdown - ash UI modifications

ash/test/test_lock_state_controller_delegate.h

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef ASH_TEST_TEST_LOCK_STATE_CONTROLLER_DELEGATE_H_
 #define ASH_TEST_TEST_LOCK_STATE_CONTROLLER_DELEGATE_H_
 
 #include "ash/wm/lock_state_controller.h"
 
 namespace ash {
 namespace test {
 
 // Fake implementation of PowerButtonControllerDelegate that just logs requests
 // to lock the screen and shut down the device.
 class TestLockStateControllerDelegate : public LockStateControllerDelegate {
  public:
   TestLockStateControllerDelegate();
   ~TestLockStateControllerDelegate() override;
 
   int num_lock_requests() const { return num_lock_requests_; }
   int num_shutdown_requests() const { return num_shutdown_requests_; }
 
   // LockStateControllerDelegate implementation.
   void RequestLockScreen() override;
-  void RequestRestart() override;
   void RequestShutdown() override;
 
  private:
   int num_lock_requests_;
-  int num_restart_requests_;
   int num_shutdown_requests_;
 
   DISALLOW_COPY_AND_ASSIGN(TestLockStateControllerDelegate);
 };
 
 }  // namespace test
 }  // namespace ash
 
 #endif  // ASH_TEST_TEST_LOCK_STATE_CONTROLLER_DELEGATE_H_